No it isn't I forgot about those lol, tar pits exist though and are part of the earth and normally boiling, possible combination of fire and earth elemental there. Lightning isn't an element its a reaction but part of Air so Al'akir would have overall control over any lightning elementals. The elementals for priest as well are just wtf are they as well, light isn't an element either.
Like I said playing fast and loose in all ways lol. As a final thought how is Therezane the earth mother not a card still? Even in the elemental set she gets no love